Radiant R2K 55 - Page 63

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R2K 55 - RAD - ING - Inst.Manual - 2002.1_CSA
2. MAINTENANCE
SUPPORT CENTER
CODE FAULT POSSIBLE CAUSE SOLUTION RESET
E02 WATER TEMP. HIGHT
LIMIT SWITCH
THERMOSTAT CABLE
DISCONNECTED;
CHECK THE WIRING: MANUAL RESET
(PRESS THE RESET
‘
’ KEY).
BROKEN HIGH LIMIT. REPL ACE IT.
E03 EXHAUST SAFETY HIGH
LIMIT SWITCH
HIGH LIMIT BROKEN; REPL ACE IT; MANUAL RESET
(PRESS THE RESET
‘
’ KEY).HIGH LIMIT CABLE
DISCONNECTED.
CHECK THE WIRING.
E04 LOW WATER CUTOFF INSUFFICIENT WATER
PRESSURE INSIDE THE SYSTEM
[LOWER THAN 4.3
psi (0.3 bar )]
LOAD THE SYSTEM; AUTOMATIC.
WATER PRESSURE SWITCH
CABLE DISCONNECTED;
CHECK THE WIRING;
WATER PRESSURE SWITCH
BROKEN.
REPL ACE IT.
E05 DOMESTIC INLET
TEMPERATURE
BROKEN OR INCORRECTLY
CALIBRATED PROBE
(RESISTANCE VALUE 10
KOHM AT 77°F (25 °C) NTC);
REPL ACE IT; AUTOMATIC.
DISCONNECTED OR WET
PROBE CONNECTOR.
CHECK THE WIRING.
E06 DOMESTIC INLET
TEMPERATURE PROBE
BROKEN OR INCORRECTLY
CALIBRATED PROBE
(RESISTANCE VALUE 10
KOHM AT 77°F (25 °C) NTC);
REPL ACE IT; AUTOMATIC.
DISCONNECTED OR WET
PROBE CONNECTOR.
CHECK THE WIRING.
E15 RETURN PROBE BROKEN OR INCORRECTLY
CALIBRATED PROBE
(RESISTANCE VALUE 10
KOHM AT 77°F (25 °C) NTC);
REPL ACE IT; AUTOMATIC.
DISCONNECTED OR WET
PROBE CONNECTOR.
CHECK THE WIRING.